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# bits.Sub32() Function in Golang with Examples

The bits.Sub32() Function in Golang is used to find the difference of a, b and borrow, i.e. diff = a – b – borrow. Here the borrow must be 0 or 1; otherwise, the behavior is undefined. To access this function, one needs to imports the math/bits package in the program. The return value of the borrowOutput will be always 0 or 1 in any case.
Syntax:

`func Sub32(a, b, borrow uint32) (diff, borrowOut uint32)`

Parameters: This function takes three parameters of uint32 type, i.e., a, b, and borrow. The value of borrow parameter is either 1 or 0.
Return Value: This function return two values of uint32 type, i.e., diff and borrowOut. Here diff contains the result of a – b – borrow and borrowOut is either 1 or 0.
Example 1:

## C

 `// Golang program to illustrate bits.Sub32() Function``package main` `import (``    ``"fmt"``    ``"math/bits"``)` `// Main function``func main() {` `    ``// Finding diff and borrowOut``    ``// of the specified numbers``    ``// Using Sub32() function``    ``nvalue_1, borrowOut := bits.Sub32(13, 8, 1)``    ``fmt.Println("Diff:", nvalue_1)``    ``fmt.Println("BorrowOut :", borrowOut)` `}`

Output:

```Diff: 4
BorrowOut : 0```

Example 2: Here, you can see that the result is not as expected as we have taken the value of borrow as 3. So if we are taking borrow input other than 1 and 0 then the behavior will be undefined.

## C

 `// Golang program to illustrate bits.Sub32() Function``package main` `import (``    ``"fmt"``    ``"math/bits"``)` `// Main function``func main() {` `    ``// Finding diff and borrowOut``    ``// of the specified numbers``    ``// Using Sub32() function` `    ``var a, b, borrow uint32 = 4, 15, 3``    ``Diff, borrowOut := bits.Sub32(a, b, borrow)``    ``fmt.Println("Number 1:", a)``    ``fmt.Println("Number 2:", b)``    ``fmt.Println("Borrow :", borrow)``    ``fmt.Println("Diff:", Diff)``    ``fmt.Println("BorrowOut :", borrowOut)` `}`

Output:

```Number 1: 4
Number 2: 15
Borrow : 3
Diff: 4294967282
BorrowOut : 1```